books-ui: library, detail page, EPUB/PDF reader, reading status/rating/sessions migration, progress/notes APIs, owner gating and tests

2026-10-24 01:06:33 +00:00
1 parent 2ca2d0d5a4
commit 364c7ee132
@@ -0,0 +1,137 @@
+<script lang="ts">
+	// A book cover: the real image when there is one, otherwise a generated cover in a
+	// colour derived from the title (also used when the image fails to load).
+	import { authorLine, coverHue } from './shared.js';
+
+	let {
+		src,
+		title,
+		authors = [],
+		placeholder = false,
+		size = 'md',
+		class: className = ''
+	}: {
+		src: string | null;
+		title: string;
+		authors?: readonly string[];
+		placeholder?: boolean;
+		size?: 'sm' | 'md' | 'lg';
+		class?: string;
+	} = $props();
+
+	let failed = $state<string | null>(null);
+	const showImage = $derived(!!src && failed !== src);
+	const hue = $derived(coverHue(title));
+</script>
+
+<div
+	class={['cover', `cover-${size}`, placeholder && 'is-placeholder', className]}
+	style:--hue={hue}
+>
+	{#if showImage}
+		<img
+			{src}
+			alt=""
+			loading="lazy"
+			decoding="async"
+			referrerpolicy="no-referrer"
+			onerror={() => (failed = src)}
+		/>
+	{:else}
+		<div class="generated" aria-hidden="true">
+			<span class="g-title">{title}</span>
+			{#if authors.length}<span class="g-author">{authorLine(authors)}</span>{/if}
+		</div>
+	{/if}
+</div>
+
+<style>
+	.cover {
+		position: relative;
+		aspect-ratio: 2 / 3;
+		width: 100%;
+		overflow: hidden;
+		border-radius: 0.375rem 0.625rem 0.625rem 0.375rem;
+		background: var(--site-hover);
+		box-shadow:
+			0 1px 2px rgb(0 0 0 / 0.25),
+			0 8px 24px -12px rgb(0 0 0 / 0.5);
+	}
+	/* Spine highlight, like a real paperback. */
+	.cover::after {
+		content: '';
+		position: absolute;
+		inset: 0;
+		pointer-events: none;
+		background: linear-gradient(
+			90deg,
+			rgb(0 0 0 / 0.28) 0,
+			rgb(255 255 255 / 0.12) 2.5%,
+			rgb(0 0 0 / 0.08) 5%,
+			transparent 9%
+		);
+		border-radius: inherit;
+	}
+	img {
+		position: absolute;
+		inset: 0;
+		width: 100%;
+		height: 100%;
+		object-fit: cover;
+	}
+	.generated {
+		position: absolute;
+		inset: 0;
+		display: flex;
+		flex-direction: column;
+		justify-content: space-between;
+		padding: 14% 10% 10% 14%;
+		color: hsl(var(--hue) 30% 96%);
+		background:
+			radial-gradient(
+				120% 80% at 100% 0%,
+				hsl(calc(var(--hue) + 40) 60% 45% / 0.55),
+				transparent 60%
+			),
+			linear-gradient(160deg, hsl(var(--hue) 45% 32%), hsl(calc(var(--hue) + 20) 50% 16%));
+	}
+	.g-title {
+		font-family: Georgia, 'Times New Roman', serif;
+		font-weight: 600;
+		line-height: 1.15;
+		font-size: 1rem;
+		display: -webkit-box;
+		-webkit-line-clamp: 6;
+		line-clamp: 6;
+		-webkit-box-orient: vertical;
+		overflow: hidden;
+		overflow-wrap: anywhere;
+	}
+	.g-author {
+		font-size: 0.7rem;
+		letter-spacing: 0.04em;
+		text-transform: uppercase;
+		opacity: 0.8;
+	}
+	.cover-sm .g-title {
+		font-size: 0.6rem;
+	}
+	.cover-sm .g-author {
+		display: none;
+	}
+	.cover-lg .g-title {
+		font-size: 1.5rem;
+	}
+	.cover-lg .g-author {
+		font-size: 0.85rem;
+	}
+	.is-placeholder {
+		box-shadow: none;
+		outline: 1.5px dashed color-mix(in srgb, var(--site-muted) 60%, transparent);
+		outline-offset: 2px;
+	}
+	.is-placeholder img,
+	.is-placeholder .generated {
+		filter: grayscale(0.85) opacity(0.55);
+	}
+</style>